Desktop liftable platform

ABSTRACT

A desktop liftable platform has a base, a supporting frame, a platform, and a driving device. The base has two side beams and two connecting beams. The supporting frame is connected to the base and has two pivot arms. The pivot arms are respectively connected to the side beams. The platform is connected to the pivot arms of the supporting frame over the base. The driving device is connected to the base and the platform, and has a swing arm and a driving cylinder. The swing arm is pivotally connected to one of the connecting beams and is pivotally connected to the platform. The driving cylinder is pivotally connected to the other one of the connecting beams and has a driving shaft pivotally connected to the swing arm. Then, the platform may move relative to the base by the driving shaft pushing or pulling the swing arm.

BACKGROUND OF THE INVENTION 1. Field of the Invention

The present invention relates to a desktop liftable platform, and moreparticularly to a desktop liftable platform that may be deposited on atop of a table, and a computer may be deposited on the desktop liftableplatform.

2. Description of Related Art

A conventional table has a fixed height, so for people of differentheights and sizes, the fixed height of the conventional table cannot beapplied to each person, and people may feel unconformable after usingthe table for a long time and may feel tired easily. In addition, whenthe height of the conventional table doesn't fit with a user, this makesthe user prone to adopt incorrect postures and then induces pathologicalchanges of muscles and joints of cervical vertebra or lumbar vertebra.Even if the height of the conventional table fits with the user, theuser remains seated on a chair to use a computer, to read or to work atthe conventional table for a long time, and this will cause poor bloodcirculation in the lower limbs of the user, resulting in severecardiovascular diseases. Therefore, when using the fixed-heightconventional table and remaining seated for a long time, the user willlack activities, which easily leads to the above-mentioned diseases.

To overcome the above-mentioned shortcomings, the present inventionprovides a desktop liftable platform to mitigate or obviate theaforementioned problems.

SUMMARY OF THE INVENTION

The main objective of the invention is to provide a desktop liftableplatform that may be deposited on a top of a table, and a computer maybe deposited on the desktop liftable platform.

The desktop liftable platform in accordance with the present inventionhas a base, a supporting frame, a platform, and a driving device. Thebase has two side beams and two connecting beams connected to the sidebeams. The supporting frame is connected to the base and has two pivotarms. The pivot arms are respectively connected to the side beams. Theplatform is connected to the pivot arms of the supporting frame over thebase. The driving device is connected to the base and the platform, andhas a swing arm and a driving cylinder. The swing arm is pivotallyconnected to one of the connecting beams and is pivotally connected tothe platform. The driving cylinder is pivotally connected to the otherone of the connecting beams and has a driving shaft pivotally connectedto the swing arm. Then, the platform may move upwardly or downwardlyrelative to the base by the driving shaft pushing or pulling the swingarm to rotate relative to the base.

Other objectives, advantages and novel features of the invention willbecome more apparent from the following detailed description when takenin conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a desktop liftable platform inaccordance with the present invention;

FIG. 2 is a perspective view of the desktop liftable platform in FIG. 1,shown with some components hidden;

FIG. 3 is another perspective view of the desktop liftable platform inFIG. 1;

FIG. 4 is a further perspective view of the desktop liftable platform inFIG. 1;

FIG. 5 is an enlarged rear side view of the desktop liftable platform inFIG. 1;

FIG. 6 is a cross sectional side view of the desktop liftable platformalong line 6-6 in FIG. 5; and

FIG. 7 is an operational cross sectional side view of the desktopliftable platform in FIG. 1.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENT

With reference to FIGS. 1 to 4, a desktop liftable platform inaccordance with the present invention may be deposited on a top of atable for placing a computer, and the desktop liftable platformcomprises a base 10, a supporting frame 20, a platform 30, and a drivingdevice 40.

The base 10 may be a rectangular frame and has two side beams 11, twoconnecting beams 12, and at least one reinforced beam 13. The side beams11 are parallel with each other at a spaced interval, and each one ofthe side beams 11 has a rear end, a middle, and a front end. One of thetwo connecting beams 12 is connected to the rear ends of the side beams11, and the other one of the connecting beams 12 is connected to themiddles of the side beams 11. Then, the front ends of the side beams 11extend out of the connecting beams 12. The at least one reinforced beam13 is connected to the connecting beams 12 between the side beams 11.Additionally, the base 10 has two reinforced beams 13 connected to theconnecting beams 12 and at spaced intervals between the side beams 11.

The supporting frame 20 is connected to the base 10 and has two pivotarms 21 and two holding panels 22. Each one of the pivot arms 21 has abottom end and a top end. The bottom end of one of the pivot arms 21 isconnected to a corresponding one of the side beams 11 of the base 10adjacent to the front end of the corresponding side beam 11, and thebottom end of the other one of the pivot arms 21 is connected to theother one of the side beams 11 of the base 10 adjacent to the front endof said the other side beam 11. One of the holding panels 22 isdeposited on the top end of one of the pivot arms 21, and the other oneof the holding panels 22 is deposited on the top end of the other one ofthe pivot arms 21.

The platform 30 is connected to the supporting frame 20 over the base10, may move toward or away from the base 10 by the supporting frame 20to adjust a height of the platform 30 relative to the base 10, and has abottom, a front edge, and a shelf 31. The bottom of the platform 30 issecurely connected to the holding panels 22, and this enables theplatform 30 to move upwardly or downwardly relative to the base 10 by amovement of the pivot arms 21 of the supporting frame 20. The shelf 31is deposited on the bottom of the platform 30 adjacent to the front edgeof the platform 30 for placing a keyboard or other objects.

With reference to FIGS. 5 and 6, the driving device 40 is connected tothe base 10 and the platform 30 to move the platform 30 upwardly ordownwardly relative to and parallel with the base 10 via the supportingframe 20. The driving device 40 has a swing arm 41, a driving cylinder42, and an adjuster 43. The swing arm 41 is pivotally connected to theconnecting beam 12 that is connected to the middles of the side beams11, is pivotally connected to the bottom of the platform 30, and has abottom end deposited between the reinforced beams 13.

The driving cylinder 42 is pivotally connected to the connecting beam 12that is connected to the rear ends of the side beams 11, extends towardthe swing arm 41, and has a bottom end, a top end, and a driving shaft421. The bottom end of the driving cylinder 42 is deposited between thereinforced beams 13. The driving shaft 421 is extendably and retractablydeposited on the top end of the driving cylinder 42, is pivotallyconnected to the swing arm 41 to enable the swing arm 41 to rotaterelative to the base 10 with the corresponding connecting beam 12 as afulcrum, and this may move the platform 30 upwardly or downwardlyrelative to the base 10 under a parallel condition.

The adjuster 43 is electrically connected to the driving cylinder 42, issecurely deposited on a side of the platform 30, and has multipleadjusting buttons 431. A user may press one of the adjusting buttons 431of the adjuster 43 to drive the driving cylinder 42, and the drivingshaft 421 is driven by the driving cylinder 42 to enable the platform 30to move upwardly or downwardly relative to the base 10.

With reference to FIGS. 1, 6, and 7, in use, the improved desktopliftable platform is deposited on the top of the table, and the user maypress one of the adjusting buttons 431 of the adjuster 43 to drive thedriving cylinder 42, and the driving shaft 421 is driven by the drivingcylinder 42 to pull or push the swing arm 41. Then, the swing arm 41 isrotated relative to the base 10 with the corresponding connecting beam12 as a fulcrum. Since the bottom of the platform 30 is pivotallyconnected to the swing arm 41 and is pivotally connected to the pivotarms 21 via the holding panels 22, this enables the platform 30 to moveupwardly or downwardly relative to the base 10 under a parallelcondition and to change a height of the platform 30 relative to the base10. Then, people of different heights and sizes can use the desktopliftable platform on the table according to the needs by adjusting theheight of the platform 30 relative to the base 10.

In addition, when the user wants to operate the computer, to read or towork with a standing posture, the platform 30 can be moved upwardly tochange the height of the platform 30 relative to the base 10, and thismay prevent the user from using the computer with the sitting posturefor a long time and may avoid causing damages to the user's health, poorblood circulation in the lower limb of the user, and the cardiovasculardiseases.

Even though numerous characteristics and advantages of the presentinvention have been set forth in the foregoing description, togetherwith details of the structure and function of the invention, thedisclosure is illustrative only, and changes may be made in detail,especially in matters of shape, size, and arrangement of parts withinthe principles of the invention to the full extent indicated by thebroad general meaning of the terms in which the appended claims areexpressed.

What is claimed is:
 1. A desktop liftable platform comprising: a basehaving two side beams being parallel with each other at a spacedinterval, and each one of the side beams having a rear end, a middle,and a front end; and two connecting beams, one of the two connectingbeams connected to the rear ends of the side beams, and the other one ofthe connecting beams connected to the middles of the side beams; asupporting frame connected to the base and having two pivot arms, eachone of the pivot arms having a bottom end, the bottom end of one of thepivot arms connected to a corresponding one of the side beams adjacentto the front end of the corresponding side beam, and the bottom end ofthe other one of the pivot arms connected to the other one of the sidebeams adjacent to the front end of said the other side beam; and a topend; a platform connected to the top ends of the pivot arms of thesupporting frame over the base; and a driving device connected to thebase and the platform and having a swing arm pivotally connected to theconnecting arm that is connected to the middles of the side beams, andpivotally connected to a bottom of the platform; and a driving cylinderpivotally connected to the connecting beam that is connected to the rearends of the side beams, and having a driving shaft pivotally connectedto the swing arm.
 2. The desktop liftable platform as claimed in claim1, wherein the driving device has an adjuster electrically connected tothe driving cylinder, securely deposited on a side of the platform, andhaving multiple adjusting buttons to drive the driving shaft to move theplatform upwardly or downwardly relative to the base.
 3. The desktopliftable platform as claimed in claim 1, wherein the platform has ashelf deposited on the bottom of the platform.
 4. The desktop liftableplatform as claimed in claim 1, wherein the supporting frame has twoholding panels; one of the holding panels is deposited on the top end ofone of the pivot arms, and the other one of the holding panels isdeposited on the top end of the other one of the pivot arms; and thebottom of the platform is securely connected to the holding panels toenable the platform to move relative to the base by the pivot arms. 5.The desktop liftable platform as claimed in claim 1, wherein the basehas at least one reinforced beam connected to the connecting beamsbetween the side beams, and the at least one reinforced beam is parallelwith the side beams.
 6. The desktop liftable platform as claimed inclaim 1, wherein the base has two reinforced beams connected to theconnecting beams and at spaced intervals between the side beams.
 7. Thedesktop liftable platform as claimed in claim 6, wherein a bottom end ofthe swing arm is deposited between the reinforced beams adjacent to theconnecting beam that is connected to the middles of the side beams; anda bottom end of the driving cylinder is deposited between the reinforcedbeams adjacent to the connecting beam that is connected to the rear endsof the side beams.
 8. The desktop liftable platform as claimed in claim2, wherein the supporting frame has two holding panels; one of theholding panels is deposited on the top end of one of the pivot arms, andthe other one of the holding panels is deposited on the top end of theother one of the pivot arms; and the bottom of the platform is securelyconnected to the holding panels to enable the platform to move relativeto the base by the pivot arms.
 9. The desktop liftable platform asclaimed in claim 3, wherein the supporting frame has two holding panels;one of the holding panels is deposited on the top end of one of thepivot arms, and the other one of the holding panels is deposited on thetop end of the other one of the pivot arms; and the bottom of theplatform is securely connected to the holding panels to enable theplatform to move relative to the base by the pivot arms.
 10. The desktopliftable platform as claimed in claim 5, wherein the supporting framehas two holding panels; one of the holding panels is deposited on thetop end of one of the pivot arms, and the other one of the holdingpanels is deposited on the top end of the other one of the pivot arms;and the bottom of the platform is securely connected to the holdingpanels to enable the platform to move relative to the base by the pivotarms.
 11. The desktop liftable platform as claimed in claim 2, whereinthe base has at least one reinforced beam connected to the connectingbeams between the side beams, and the at least one reinforced beam isparallel with the side beams.
 12. The desktop liftable platform asclaimed in claim 3, wherein the base has at least one reinforced beamconnected to the connecting beams between the side beams, and the atleast one reinforced beam is parallel with the side beams.
 13. Thedesktop liftable platform as claimed in claim 4, wherein the base has atleast one reinforced beam connected to the connecting beams between theside beams, and the at least one reinforced beam is parallel with theside beams.
 14. The desktop liftable platform as claimed in claim 2,wherein the base has two reinforced beams connected to the connectingbeams and at spaced intervals between the side beams.
 15. The desktopliftable platform as claimed in claim 3, wherein the base has tworeinforced beams connected to the connecting beams and at spacedintervals between the side beams.
 16. The desktop liftable platform asclaimed in claim 4, wherein the base has two reinforced beams connectedto the connecting beams and at spaced intervals between the side beams.